Enameling-powder distributer.



W. LINDSAY.

ENAMELING POWDER DISTRIBUTER.

APPLICATION FILED AUG-12| |9|2. 1,273,632. Patented July 23,1918.

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W. LINDSAY.

ENAMELING POWDER DISTRIBUTER.

APPLICATION FILED Auc.l2. 1912.

1 ,273,632. Patented July 23, 1918.

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ENAMELING POWDER DISTRIBUTER.

APPLICATION FILED Aue.12, I9I2.

1 ,273,632. Patented July 23, 1918.

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TE l@` STATES PATENT OFFICE.

WILLIAM LINDSAY, 0F CHICAGO, ILLINOIS, ASSIGNOR TO L. WOLFF MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ENAMELING-POWDER DISTRIBUTER.

Application tiled August 12, 1912.

To all whom t may concern:

Be it known that I, l/VILLIAM LINDSAY, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Enameling-Iowder Distributers, of which the following is a specication.

This invention relates to improvements in enameling powder distributers.

Hitherto, in sifting and distributing enameling powder over heated 'bath tubs or other vessels, the sifter or dredger has always, so far as I am aware, included a body or vessel adapted to hold only a few pounds of the enameling powder at a time which vessel or body has had to be refilled by hand when the supply became exhausted. On account of the high specific gravity of the enameling powder and the fact that the sifter 0r dredger has to be held up by the operator and` constantly moved about during the application of the powder to the tub or other vessel, it has been necessary to limit the capacity of the body of the sieve or sifter to a comparatively small volume, with the result that the small amount of powder which can be placed therein is quickl used up and must be frequently re- .plenis ed. Inasmuch as the enameling powder has to be applied while the bath tub or other vessel is at a bright red to a white heat, it is essential that the operator apply the powder without any waste of time, but wherethe operator `has to frequently refill the containing vessel or dredger, not only is valuable time thus lost in the sifting operation, which allows the bath tub or other vessel to cool and requires additional firing, but also the enameling powder is more 0r less unevenly applied, because the operator cannot tell each time exactly where he left off sifting before reiilling.

An object of my invention is to devise an `apparatus which will overcome all of the objections above noted, and which is so arranged that the distributer proper may be continuously supplied with enameling powder from a reservoir tank while the op erator is vapplying the powder.

Another object of the invention is to provide means for feeding the powder with a constant even flow from the reservoir to the distributor.

A further object of the invention consists Specification of Letters Patent.

Patented July 23, 1918.

sel-m1 No. 714,491.

in providing` means for insuring the positive discharge of the cnameling` powder from the reservoir tank.

The invention furthermore consists in the improvements of the parts and devices and in the novel combinations of parts and devices herein shown, described or claimed.

In the drawing forming a part of this specification, Figure l is a side elevation of an apparatus embodying my improvements. Fig. 2 is a horizontal, sectional view, upon an enlarged scale, taken on the line 2-2 of Fig. l. Fig. 3 is a vertical sectional view, upon an enlarged scale, taken on a plane passing through the axis of the reservoir. Figs. l, 5 and G are horizontal, sectional views, taken on the lines l1--4., 5-5 and 6-6 of Fig. 3, respectively. Fig. 7 is a side elevation showing my improvements embodied in a slightly different form of apparatus from that shown in Figs. l to 6 inclusive, parts beino' broken away to more clearly illustrate the construction. Fig. 8 is a detail, sectional view of the valve members used in the construction shown in Fig. 7, and Fig. 9 is a detail, sectional view of a portion of the distributer handle, showing the manner of supplying compressed air to the interior thereof for forcing the powder therethrough.

In the drawing, A represents the powder distributor, which may be of the type shown in either of the patents issued to me, Nos. 939,918, dated Nov. 9, 1909 and 951,478, dated March 8, 1910, or of any other well known construction. The powder distributer A, as shown, comprises a vessel or box and has secured thereto a hollow, tubular handle 20, which communicates with the interior of the box or vessel. At the outer end of the hollow handle 20 is secured one end of a flexible pipe connection 21, the latter being connected at its other end to the discharge end 22 of the reservoir B. The reservoir B may be of any desired formation, but preferably comprises an upper, cylindrical portion 23, having a conical hopper bottom 211, the latter being provided at its lower end with a small chamber 25, the chamber 25 and the interior of the reservoir being in communication with each other by means of the hole 2G formed in the top wall of the chamber 25. The reservoir B may be supported in any desired manner, for instance, as by means of the downwardly eX- tending supporting wall 260, and adapted to be transported or handled by means of a a pivoted cover` 29, the latter having a cut-V out portion at the center for a purpose presently to be described. The 'reservoir may be made for any desired capacity, preferably of one hundred. toione -hundred and fifty pounds. f

As is well'lnown, .the specific gravity of enameling powder is comparatively high, and it has a peculartendencyfto pack lor solidify, and

for thisfreason it is essential that means beV provided whichlwill insure the positive feedl of powder toward the outlet and discharge therefromyand such means are provided in the follow-ing construction. Located withinl thechamber 25 is a horizontal sieve member 30, which isfof rigid construction, and! preferably of quarter inch mesh and is secured toa vertically reciprocating rod 810, the latter:being'cushion-supported at each end, as

by means of coiled springs 31, 32, the spring 32 being supported by a crow-'foot 33 located within thev discharge end '22l of the tank, and' having an upwardly extending centering lugY 34 for the coiled spring 32. Mounted on the rod 31 and adapted to reciprocate bodily ltherewithare a pluralityv of tubular members 35, 36, 37, each secured to a common dislr40 at its upper end, said disk 40 being eXibly secured to the rod 31, as by means of a coiled spring 41. The tubular members 35, '36 and 57,y as shown, are concentrically arranged and are of `varying lengths Vand diameters, the one of greatest diameter being the sliortestand the one of smallest diameter being the longest. The disk 40 is providedA with a central recess 42 so thatit may-have a movement independent of the'rod 31, and thusy allow the tubular members 35, 36 and 37 to have an oscillating motion relatively vto the rod 31, as well as having abodily reciprocating motion therewith.V The 'lower edgesof each of thetubular members 36 and 37, as will be obvious,fwill vengage the enameling powder within the reservoir and will yscrape off a. certain amount thereof when:

the same. tends to packand feed it downtoward the bottom, ythe tubular members acting progressively to accomplish Vthis result. The longest tubular Vmember 35 is'eXtended slightly-withinthe chamber 25 to thereby insure'.Y the' positive discharge 'of enameling powder from vthe conical hopper 24 into the chamber 25. Any suitable means mayV be used for imparting a rapid, reciprocatory motion tothe rod 31 and the other` members supported thereby, such means as shown fcomprising a'pneumatically oper-ated hammer 43, nof any well known form, and adapt- Ved to be supplied with compressed air by the pipe 44.

In order to force the powder through the hollow, tubular handle 20 in substantially a,

clearly shown in Fig. 9. Where asift'er or-l dredger isused having a sieve bottom, means may be provided for imparting arapid, vibratory motion thereto, and such means, as shown in Fig; 1, comprise a compressed'air turbine 47 adapted' to vbe supplied from the', branch pipe'48, said/turbine being adaptedk to rotate at a high speed ashaft 49 on whichV is mounted, 'eccentrically, :a disk. 50. With such a construction, the powder distributer A is. causedf'to vibrate in the .manner described inlmy said lPateiit'No.V 951,478; Gompressed Jairfor 'operating Vthe pneumatic latter havinga valve 52 therein, whereby neously governed.

ln theconstruction of` apparatus kshowin hammer-43,.turbine 47 kvand for forcing the`V powder along thehollow, tubular handle .20.. is` supplied from any suitable source (not shown), through a pipe connection. 51,tlie

in Figs; 1 to 6 inclusive, the reservoir B is intended to be stationed' at some point above the level at which the enamel'ing. 'Y powder distributer i'sused, so that gravity will assistl the powder in traveling'along the outer supply pipe 21 to thehand-le 2O after the powder has been'dischargedlfroin the reservoir, but shouldit bede'sired to have the reservoir positioned at' the samelevel Y as that atl which therdistributer is used," or even below the same, the enameling powder may be fedtol the hollow, tubular handle. by the construction shown inFig.-@where-f7V in: compressed air. is supplied to 'the-charia, vber 125, at. the. bottom of thev reservoirfBlV and at various points `along the powder-- feed. tube 121, as by means of branchlpipes 146, 146,'1eadingfout 'from ther compressed air pipe147;. .The discharging apparatus;

in the.. reservoir B1 is operated byfapneu-v y Vmatic hammer 143 in a manner similarton l the hammer 43, the'same being-adapted to be supplied withncompressed air through the pipe V144. Thedistributer, asshownin!v Fig. 7, comprises an inverted, Vfun-nele.

vided with a hollow, tubular handle: 1201 to which-compressedI air is` supplied at theend! thereof, as bymeans ofA a pipe 145, and at points intermediate the ends byy branch pipes 148, 148. VThe supply of compressed air to the hammer 143, powder feed pipe 121 and handle 120 is obtained from a pipe 151, and is governed by a valve 152.

In practice, the area of the sieve member 30 and the mesh thereof are so proportioned that the rate of discharge of enameling powder from the reservoir will correspond to the amount of enameling powder desired at the powder distributer, which may be at the rate of six pounds per minute. By employing compressed air to force the powder along the hollow, tubular handle of the distributer, the powder is moved substantially as a solid mass and flows out into the sifter or other form of distributer in a stream rather than being blown out in the form of light particles floating in air.

Various changes and modifications may be made in the parts of the apparatus without departing from the spirit of the invention, and all such changes and modications are contemplated as fall within the scope of the claims appended hereto.

I claim l. In an apparatus of the character de scribed, in combination: a reservoir adapted to hold a quantity of enameling powder and having a discharge outlet; and means for discharging powder from the reservoir through said outlet, said means including a suspended reciprocating member' adapted to have a constant oscillating motion about its own longitudinal aXis to positively feed said powder toward said outlet.

2. In an apparatus of the character described, in combination: a reservoir adapted to hold a quantity of enameling powder and provided with a chamber at the bottom thereof and having also a passage therebetween, the chamber being provided with a discharge outlet; and means for discharging powder from the reservoir into said chamber and from the chamber through said outlet, said means including a reciprocating sieve member located Within the chamber and a suspended member within the reservoir and adapted to have an oscillating motion.

3. In an apparatus of the character described, in combination: a reservoir adapted to hold a quantity of enameling powder and having a discharge outlet; and means for discharging powder from the reservoir through said outlet including a cushionsupported rod having a foraminous member secured thereto and adapted to be reciprocated, and a member secured to said rod above said member and adapted to oscillate relatively to said rod.

4. In an apparatus of the character described, the combination of a reservoir for containing enameling powder provided with a dlscharge outlet, and means for discharging powder from said reservoir through said outlet, said means including a member of general tapering stepped form, the stepped parts of said member successively engaging the powder to advance it.

5. In an apparatus of the character described, the combination of a reservoir for containing enamel ing powder and having a discharge outlet, and means for discharg- Y ing powder from said reservoir through said outlet, said means comprlslng a vibratory member and a pneumatic hammer acting thereon.

WILLIAM LINDSAY. Witnesses:

PEARL ABRAMS, J orrN W. MUNDAY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, ID. C. 

